Means for watermarking paper



Nov 4 1924c 1,514,238 5. M. WALLACE MEANS FOR WATERMARKING PAPER Filed April '7, 1922 Patented Nov. 4, 1924.

STATES PATENT OFFICE.

GEO'BGE M. WALLACE, OF RENSSELAER, NEW YORK, ASSIGNOR T0 F. C. HUYCK 86 SONS, OF RENSSELAER, NEW YORK,-A CORPORATION OF NEW YORK.

MEANS FOR WATERMARKING PAPER.

' Application filed April 7,

To all whom it may concern:

Be it known that I, GEORGE M. WALLACE, a citizen of the United States, residing at Rensselaer, in the county of Rensselaer and State of New York, have invented certain new and useful Improvements in Means for \Vatermarking Paper; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to means for water marking paper during its manufacture.

The object of the invention is to rovide means for economically and efiicient y producing any desired water mark design whether of a simple or complex nature without interfering with the proper passage of the paper stock through the machine and without danger of injuring or weakening either the web or its cellulose fibres.

To this end the invention comprises a water marking roller having a periphery of heavily felted woolen fabric with a raised marking design thereon which, for the best results, should also be of wool. A marking roller of this character is peculiarly adapted for producing a Well defined mark or design in the paper Web while in a damp, soft condition without injury to the web or to the cellulose fibres and without disturbance of the fibres except at the points where the design should appear. This is due to the fact that firmly woven and felted wool fabric has the characteristic property of permitting the soft and damp web of paper stock which has been pressed against it to separate therefrom without surface tension or friction and without any tendency to injure or distort the web. The felt periphery of the marking roll may, therefore, press firmly upon the moist paper web without in any wise interfering with the passage of the paper and the raised woolen design thereon may spread and thin the web of paper without injuring the fibres or weakening the web. A well defined clear out water mark design is thus impressed upon the paper without any tendency to disrupt or injure the cellulose fibres or the web and without interfering with the passage of the paper web through the paper making machine.

The felt covering 111 y be applied and secured to the peripher of the roll in any surface throughout that part of the p'eriphery which runs in engagement with the paper stock. The water mark design may be conveniently and economically formed on a strip of this character by a stitching or embroidering machine constructed to form a suitably raised seam on the surface of the felt strip. The desired design may be readily laidout on the felt strip so that it may be followed by the operator of the stitching or embroidering machine and so that it will be properly located on the surface of the roll when the strip is wound and secured thereon.

A preferred construction of roll embodying the invention is shown in the accompanying drawings in which the figure shows a water marking roll embodying the inveir tion in its preferred form.

As shown in the drawings the water mark design consists of a series of groups of letters and scrolls 2 arranged in line lengthwise of the roll. Each group of letters and scrolls may be considered as a component part of a complete design and the design indicated may be considered as merely symbolic of a more or less complex design, the component parts of which have a predetermined relation to. each other upon the periphery of the roll. The periphery of the roll consists of a strip 4 of woven and heavily felted woolen fabric which is wound spirally upon the cylindrical body 6 of the roll with its edges closely abutting so that the strip presents a smooth unbroken surface throughout the periphery of the roll. The strip may be secured to the roll in any suitable manner as by fastening indicated at 8. The groups of letters 2 forming the component parts of the water mark design are so arranged and spaced on the strip that they will be brought into the desired relation to each other on the periphery of the roll when the strip is wound spirally thereon with its edges closely abutting. The design is laid out on the strip and then formed by a formed on the peripheral covering for the marking roll while it is in flat strip form and the component parts of the complete design with which the periphery of the roll is to be provided may be so arranged on the strip that they will be brought into the desired relation to each, other on the surface of the roll when the strip is wound spirally thereon.

The felt covered roll may be ofany suitable length and diameter to meet the conditions under which it is to be utilized. I The roll may be arranged at any convenient or desired place to act on the paper after it leaves the Fourdrinier wires and before itenters the heated drying cylinders so that it will act upon the cellulose web while it is in a soft and damp condition. The requisite pressure between the roll and the surface of the paper may also be secured in, any suitable manner.

While it is preferred to utilize the construction shown and described it will be understood that this is not essential and may be varied or modified as found desirable without departing from the broader features of the invention.

What is claimed is:

1. A roll for water marking paper during its manufacture provided with a periphery of felted woolen fabric having on its surface a raised seam of stitches forming a water marking design.

2. A roll for water marking paper during its manufacture provided with a periphery of felted woolen" fabic having on its surface a raised seam of woolen stitching forlnits manufacture, the periphery of which consists of a strip of woven and felted woolen fabric wound spirally thereon with closely abutting edge and having on its surface a raised marking design also of wool.

5. A roll for water marking paper during its manufacture, the periphery of which consists of a strip of woven felted woolen fabric wound spirally thereon with closely abutting edges and having on its surface raised stitching forming a water marking design.

6. A peripheral covering for a roll for water marking paper during its manufacture consisting of a strip of woven and felted woolen fabric having on its surface a, raised water marking design, the component parts of which are arranged along the strip to bring them into proper relation to each other on the surface of the roll when the strip is wound spirally thereon with edges abutting.

7. A peri heral covering for a roll for water marking paper during its manufacture consisting of a strip of woven and felted woolen fabric having on its surface a raised woolen water marking design, the component parts of which are arranged along the strip to bring them into proper relation to each other on the surface of the roll when the strip is wound spirally thereon with edges abutting.

GEORGE M. WALLACE. 

